The rapid-mixing stopped flow apparatus, thermostated at 20" C, was flushed with several sliquots of dry THF and then with the anion solution until the effluent in the stop syringe maintained the anion color. Solutions of anion< and halide were transferred to the apparatus by gas-tight syringes in a manner that excluded air or moisture. After several flushes of the respective chambers by the anion and halide solutions, oscilloscope tiraces of multiple ...